Newly approved rice varieties in Hunan Province
The crop Variety approval Committee of Hunan Province held a meeting in February 2000, and 15 new rice varieties were approved.
I. approved and approved varieties (12)
The rice varieties and combinations Xiangzaoxian 31 (formerly Fengyouzao 11), Xiangzhongxian 4 (formerly known as Zhou 7010), Xiangzhong Nuo 1 (formerly known as Sinuo 48), Xiangwannuo 1 (formerly Xiangji 9512), Baliangyou 96 (810S/ Huai 96-1), K you 17, Yueyou 63 (Yue 4A/ Minghui 63), Weiyou 134 (Wei20A / R134), Weiyou 227 (Weiyou 20A/R227).
Rice male sterile lines Deshan A, B (formerly 30A, B), Lu 18s (original plant 625-18s), Xu 29A, B.
2. Identify the approved varieties (3)
Zhongxiang No. 1, Baliangyou 63 (810S/ Minghui 63), Weiyou 288 (Wei20A/R288).
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Biodegradable Film Rice controlled Fertilizer developed in Hunan Province
A kind of biodegradable film rice controlled release fertilizer has been developed by Hunan soil Fertilizer Research Institute, which can be widely used in rice growing areas in China without side effects. Hunan soil and Fertilizer Research Institute uses natural and semi-natural polymer materials as the principal components of the coating, and adopts the new fluidized state double spray bed coating technology developed by ourselves to develop a biodegradable film controlled release fertilizer which can artificially control the release of fertilizer nutrients within 30,330 days. the controlled release fertilizer is non-toxic, completely degraded within 2 years after application to soil, and has no residue, and can reduce the effect of fertilizer on atmosphere, soil, water and other environment.
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How to manage Water and Fertilizer in Rice after Flood
What problems should be paid attention to in washing rice seedlings? The paddy fields affected by the disaster should promptly remove stagnant water, straighten inverted seedlings, dredge ditches in time, and lower the groundwater level. If the loss of irrigation facilities is relatively heavy, emergency repairs should be organized in a timely manner. When the stagnant water in the paddy field retreats, the ditch should be opened to drain the soil water, and the water content in the field should be reduced as soon as possible, so that the floating mud formed by flooding can be gradually settled so as to promote the growth of new roots. For the fields that have been submerged for a long time, the water can be drained at one time in overcast and rainy weather, and should be drained gradually in case of hot sun and high temperature.
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